Finding the Fourth Proportional to 2,188,615.68, 3,020,302.08 and 1,283,212.80
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Solution
The fourth proportional to 2,188,615.68, 3,020,302.08 and 1,283,212.80 is: 1,770,840.96
Step by Step Solution
- Step 1: Write the proportion equation
2,188,615.68 : 3,020,302.08 = 1,283,212.80 : x - Step 2: Convert to fraction form
2,188,615.68/3,020,302.08 = 1,283,212.80/x - Step 3: Cross multiply
2,188,615.68x = 3,020,302.08 × 1,283,212.80 - Step 4: Simplify right side
2,188,615.68x = 3,875,690,288,922.62 - Step 5: Solve for x
x = 3,875,690,288,922.62/2,188,615.68 - Step 6: Final answer
x = 1,770,840.96
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.